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Potomac Riverwatch: Winter 2026
NEWS
Massive sewage spill near Glen Echo, MD--A 6‑foot sewer line known as the Potomac Interceptor ruptured, releasing tens of millions of gallons of raw sewage per day into the river. Waterkeepers have recorded unsafe E. coli levels downstream toward Arlington and D.C. DetailsE. coli levels thousands of times above safe limits--Testing near Lockhouse 10 on the C&O Canal revealed contamination far beyond safe human‑contact thresholds, with environmental groups warning that the impact is worse than initially believed. Details
DC Water emergency response-- DC Water crews are working to divert sewage into a dry section of the C&O Canal using pumps and temporary bypass systems. Officials warn that winter storms could complicate containment. Details
Potomac Interceptor: A 6-foot sewer nightmare--The Potomac Interceptor was built in the 1960s to deal with the explosive growth in Fairfax and Loudoun Counties. It's deteriorated over the years to the point that it needs major repairs. Details
Environmental impact and regional concerns-- Environmental groups describe the spill as a regional catastrophe, noting the pipeline’s age and long‑known deterioration issues. Details